Denim Repair Suggestions - Boston or mail order shops?

]Hi guys, Im wearing my first pair of raw denim, Samurai 710's, and I need to have some repair work done. There is a hole about the size of a quarter just above the knee and a few other spots that look like they could open up soon.

Where can i get them repaired?

I live in Boston so a good shop in the area would be preferrable but I would consider mailing them somewhere if it's a better Idea.

I would also like to chain stitch the hem and possibly re-enforce the crotch at the same time if but my first order of business is to fix the wear above the knees before it gets any worse.